Which Biosphere Reserves of India term is correctly identified by “a deltaic mangrove biosphere reserve in West Bengal” and “it lies within the lower Ganga-Brahmaputra-Meghna delta”?

Correct Answer: Option A — Sundarban Biosphere Reserve. Sundarban Biosphere Reserve is correct because it is a deltaic mangrove biosphere reserve in West Bengal. Sundarban Biosphere Reserve is also specifically associated with it lies within the lower Ganga-Brahmaputra-Meghna delta. Two additional identifying facts are that Sundarban Biosphere Reserve is tidal creeks, mudflats and mangrove islands dominate the landscape and Sundarban Biosphere Reserve is associated with cyclones and salinity are major ecological pressures. Why the other options are incorrect: • Option B — Pachmarhi Biosphere Reserve: Pachmarhi Biosphere Reserve is a biosphere reserve in Madhya Pradesh. • Option C — Nilgiri Biosphere Reserve: Nilgiri Biosphere Reserve is a biosphere reserve in the Western Ghats. It is incorrect here because its separate identifying association is it spans parts of Tamil Nadu, Kerala and Karnataka. • Option D — Nanda Devi Biosphere Reserve: Nanda Devi Biosphere Reserve is a high-Himalayan biosphere reserve in Uttarakhand. It is incorrect here because its separate identifying association is Nanda Devi and Valley of Flowers landscapes are associated with it. Exam Takeaway: Connect Sundarban Biosphere Reserve with “a deltaic mangrove biosphere reserve in West Bengal” and “it lies within the lower Ganga-Brahmaputra-Meghna delta”.